/**
 * Get snmp value to the structure my_oid_result array.
 * Author : lining 15810423651 [email protected] 
 * @param peername  : the remote host ip address.
 * @param oid_argvs : the oids pointer array.
 * @param my_oid_result oid_result : the return values. 
 * @return 0 on success, or others on failure.
 * @return 1 on failure, the argument value error.
 * @return 2 on failure, snmp_open return error.
 * @return 3 on failure, snmp_parse_oid return error.
 * @return 4 on failure, snmp_synch_response return status time out.
 * @return 5 on failure, snmp_synch_response return status others.
 */
int my_snmp_get(const char *peername, 
				const char *community, 
				const char *oid_argv, 
				my_oid_result *oid_result) {
	
	netsnmp_session	session;
	netsnmp_session *sess_handle;
	netsnmp_pdu	*pdu;
	netsnmp_pdu	*response;
	netsnmp_variable_list	*vars;
	
	oid oids[MAX_OID_LEN];
    size_t	oids_length;

    int	status;
    int	failures = 0;
	oids_length = 0;
	
	if (peername == NULL) {
		printf("[ERROR] my_snmp_get: the peername pointer is null\n");
		return 1;
	}
	if (community == NULL) {
		printf("[ERROR] my_snmp_get: the community pointer is null\n");
		return 1;
	}
	if (oid_argv == NULL) {
		printf("[ERROR] my_snmp_get: the oid_argv pointer is null\n");
		return 1;
	}
	
	init_snmp("snmpget");
	snmp_sess_init(&session);
	session.version = SNMP_VERSION_2c;
	session.community = (char*)community;
	session.community_len = strlen(session.community);
	session.peername = (char*)peername;
	session.timeout = 3000000;
	session.retries = 1;
	
    SOCK_STARTUP;

    sess_handle = snmp_open(&session);
    if (sess_handle == NULL) {
        SOCK_CLEANUP;
		printf("[ERROR] my_snmp_get: call snmp_open function failed, return sess_handle is null\n");
        return 2;
    }

    pdu = snmp_pdu_create(SNMP_MSG_GET);

	oids_length = MAX_OID_LEN;

	if (!snmp_parse_oid(oid_argv, oids, &oids_length)) {
		snmp_perror(oid_argv);
		failures++;
	} else {
		snmp_add_null_var(pdu, oids, oids_length);
	}
    if (failures) {
        SOCK_CLEANUP;
		printf("[ERROR] my_snmp_get: call snmp_parse_oid function failed\n");
        return 3;
    }
	
    status = snmp_synch_response(sess_handle, pdu, &response);
	
    if (status == STAT_SUCCESS && response->errstat == SNMP_ERR_NOERROR) {
	
		for (vars = response->variables; vars; vars = vars->next_variable) {
			get_oid_value(vars, &oid_result);
		}
		
    } else if (status == STAT_TIMEOUT) {
		printf("[ERROR] my_snmp_get: call snmp_synch_response function failed, return status time out\n");
        return 4;
    } else {
		printf("[ERROR] my_snmp_get: call snmp_synch_response function failed, return status others\n");
        return 5;
    }

    if (response) {
        snmp_free_pdu(response);
	}
    snmp_close(sess_handle);
    SOCK_CLEANUP;
	
//.........这里部分代码省略.........

void *poller(void *thread_args)
{
    worker_t *worker = (worker_t *) thread_args;
    crew_t *crew = worker->crew;
    target_t *entry = NULL;
    void *sessp = NULL;
    struct snmp_session session;
    struct snmp_pdu *pdu = NULL;
    struct snmp_pdu *response = NULL;
    oid anOID[MAX_OID_LEN];
    size_t anOID_len = MAX_OID_LEN;
    struct variable_list *vars = NULL;
    unsigned long long result = 0;
    unsigned long long last_value = 0;
    unsigned long long insert_val = 0;
    int status = 0, bits = 0, init = 0;
    char query[BUFSIZE];
    char storedoid[BUFSIZE];
    char result_string[BUFSIZE];

    if (set.verbose >= HIGH)
	printf("Thread [%d] starting.\n", worker->index);
    if (MYSQL_VERSION_ID > 40000)
       mysql_thread_init();
    else 
       my_thread_init();

    while (1) {
	if (set.verbose >= DEVELOP)
	    printf("Thread [%d] locking (wait on work)\n", worker->index);

	PT_MUTEX_LOCK(&crew->mutex);

	while (current == NULL) {
		PT_COND_WAIT(&crew->go, &crew->mutex);
	}
	if (set.verbose >= DEVELOP)
	    printf("Thread [%d] done waiting, received go (work cnt: %d)\n", worker->index, crew->work_count);

	if (current != NULL) {
	    if (set.verbose >= HIGH)
	      printf("Thread [%d] processing %s %s (%d work units remain in queue)\n", worker->index, current->host, current->objoid, crew->work_count);
	    snmp_sess_init(&session);
		if (set.snmp_ver == 2)
	      session.version = SNMP_VERSION_2c;
		else
	      session.version = SNMP_VERSION_1;
	    session.peername = current->host;
		session.remote_port = set.snmp_port;
	    session.community = current->community;
	    session.community_len = strlen(session.community);

	    sessp = snmp_sess_open(&session);
	    anOID_len = MAX_OID_LEN;
	    pdu = snmp_pdu_create(SNMP_MSG_GET);
	    read_objid(current->objoid, anOID, &anOID_len);
	    entry = current;
	    last_value = current->last_value;
	    init = current->init;
	    insert_val = 0;
	    bits = current->bits;
	    strncpy(storedoid, current->objoid, sizeof(storedoid));
		current = getNext();
	}
	if (set.verbose >= DEVELOP)
	    printf("Thread [%d] unlocking (done grabbing current)\n", worker->index);
	PT_MUTEX_UNLOCK(&crew->mutex);
	snmp_add_null_var(pdu, anOID, anOID_len);
	if (sessp != NULL) 
	   status = snmp_sess_synch_response(sessp, pdu, &response);
	else
	   status = STAT_DESCRIP_ERROR;

	/* Collect response and process stats */
	PT_MUTEX_LOCK(&stats.mutex);
	if (status == STAT_DESCRIP_ERROR) {
	    stats.errors++;
            printf("*** SNMP Error: (%s) Bad descriptor.\n", session.peername);
	} else if (status == STAT_TIMEOUT) {
	    stats.no_resp++;
	    printf("*** SNMP No response: (%[email protected]%s).\n", session.peername,
	       storedoid);
	} else if (status != STAT_SUCCESS) {
	    stats.errors++;
	    printf("*** SNMP Error: (%[email protected]%s) Unsuccessuful (%d).\n", session.peername,
	       storedoid, status);
	} else if (status == STAT_SUCCESS && response->errstat != SNMP_ERR_NOERROR) {
	    stats.errors++;
	    printf("*** SNMP Error: (%[email protected]%s) %s\n", session.peername,
	       storedoid, snmp_errstring(response->errstat));
	} else if (status == STAT_SUCCESS && response->errstat == SNMP_ERR_NOERROR) {
	    stats.polls++;
	} 
	PT_MUTEX_UNLOCK(&stats.mutex);

	/* Liftoff, successful poll, process it */
	if (status == STAT_SUCCESS && response->errstat == SNMP_ERR_NOERROR) {
	    vars = response->variables;
#ifdef OLD_UCD_SNMP
            sprint_value(result_string, anOID, anOID_len, vars);
//.........这里部分代码省略.........

/*
 * response handler
 */
int asynch_response(int operation, struct snmp_session *sp, int reqid, struct snmp_pdu *pdu, void *magic)
{
	struct req_t *req = (struct req_t *)magic;

	if (operation == NETSNMP_CALLBACK_OP_RECEIVED_MESSAGE) {
		struct snmp_pdu *snmpreq = NULL;
		int okoid = 1;

		if (dataoperation == GET_KEYS) {
			/* 
			 * We're doing GETNEXT's when retrieving keys, so we will get a response
			 * which has nothing really to do with the data we're looking for. In that
			 * case, we should NOT process data from this response.
			 */
			struct variable_list *vp = pdu->variables;

			okoid = ((vp->name_length >= req->currentkey->indexmethod->rootoidlen) && 
			         (memcmp(req->currentkey->indexmethod->rootoid, vp->name, req->currentkey->indexmethod->rootoidlen * sizeof(oid)) == 0));
		}

		switch (pdu->errstat) {
		  case SNMP_ERR_NOERROR:
			/* Pick up the results, but only if the OID is valid */
			if (okoid) print_result(STAT_SUCCESS, req, pdu);
			break;

		  case SNMP_ERR_NOSUCHNAME:
			dbgprintf("Host %s item %s: No such name\n", req->hostname, req->curr_oid->devname);
			if (req->hostip[req->hostipidx+1]) {
				req->hostipidx++;
				startonehost(req, 1);
			}
			break;

		  case SNMP_ERR_TOOBIG:
			toobigcount++;
			errprintf("Host %s item %s: Response too big\n", req->hostname, req->curr_oid->devname);
			break;

		  default:
			errorcount++;
			errprintf("Host %s item %s: SNMP error %d\n",  req->hostname, req->curr_oid->devname, pdu->errstat);
			break;
		}

		/* Now see if we should send another request */
		switch (dataoperation) {
		  case GET_KEYS:
			/*
			 * While fetching keys, walk the current key-table until we reach the end of the table.
			 * When we reach the end of one key-table, start with the next.
			 * FIXME: Could optimize so we dont fetch the whole table, but only those rows we need.
			 */
			if (pdu->errstat == SNMP_ERR_NOERROR) {
				struct variable_list *vp = pdu->variables;

				if ( (vp->name_length >= req->currentkey->indexmethod->rootoidlen) && 
				     (memcmp(req->currentkey->indexmethod->rootoid, vp->name, req->currentkey->indexmethod->rootoidlen * sizeof(oid)) == 0) ) {
					/* Still more data in the current key table, get the next row */
					snmpreq = snmp_pdu_create(SNMP_MSG_GETNEXT);
					pducount++;
					/* Probably only one variable to fetch, but never mind ... */
					while (vp) {
						varcount++;
						snmp_add_null_var(snmpreq, vp->name, vp->name_length);
						vp = vp->next_variable;
					}
				}
				else {
					/* End of current key table. If more keys to be found, start the next table. */
					do { 
						req->currentkey = req->currentkey->next;
					} while (req->currentkey && req->currentkey->indexoid);

					if (req->currentkey) {
						snmpreq = snmp_pdu_create(SNMP_MSG_GETNEXT);
						pducount++;
						snmp_add_null_var(snmpreq, 
								  req->currentkey->indexmethod->rootoid, 
								  req->currentkey->indexmethod->rootoidlen);
					}
				}
			}
			break;

		  case GET_DATA:
			/* Generate a request for the next dataset, if any */
			if (req->next_oid) {
				snmpreq = generate_datarequest(req);
			}
			else {
				dbgprintf("No more oids left\n");
			}
			break;
		}

		/* Send the request we just made */
//.........这里部分代码省略.........

//.........这里部分代码省略.........
            case 'U':
            case 'F':
            case 'D':
#endif                          /* OPAQUE_SPECIAL_TYPES */
                types[current_type++] = *argv[arg++];
                break;
            default:
                fprintf(stderr, "%s: Bad object type: %c\n", argv[arg - 1],
                        *argv[arg]);
                exit(1);
            }
        } else {
            fprintf(stderr, "%s: Needs type and value\n", argv[arg - 1]);
            exit(1);
        }
        if (arg < argc)
            values[current_value++] = argv[arg];
        else {
            fprintf(stderr, "%s: Needs value\n", argv[arg - 2]);
            exit(1);
        }
    }

    SOCK_STARTUP;

    /*
     * open an SNMP session 
     */
    ss = snmp_open(&session);
    if (ss == NULL) {
        /*
         * diagnose snmp_open errors with the input netsnmp_session pointer 
         */
        snmp_sess_perror("snmpset", &session);
        SOCK_CLEANUP;
        exit(1);
    }

    /*
     * create PDU for SET request and add object names and values to request 
     */
    pdu = snmp_pdu_create(SNMP_MSG_SET);
    for (count = 0; count < current_name; count++) {
        name_length = MAX_OID_LEN;
        if (snmp_parse_oid(names[count], name, &name_length) == NULL) {
            snmp_perror(names[count]);
            failures++;
        } else
            if (snmp_add_var
                (pdu, name, name_length, types[count], values[count])) {
            snmp_perror(names[count]);
            failures++;
        }
    }

    if (failures) {
        SOCK_CLEANUP;
        exit(1);
    }

    /*
     * do the request 
     */
    status = snmp_synch_response(ss, pdu, &response);
    if (status == STAT_SUCCESS) {
        if (response->errstat == SNMP_ERR_NOERROR) {
            if (!quiet) {
                for (vars = response->variables; vars;
                     vars = vars->next_variable)
                    print_variable(vars->name, vars->name_length, vars);
            }
        } else {
            fprintf(stderr, "Error in packet.\nReason: %s\n",
                    snmp_errstring(response->errstat));
            if (response->errindex != 0) {
                fprintf(stderr, "Failed object: ");
                for (count = 1, vars = response->variables;
                     vars && (count != response->errindex);
                     vars = vars->next_variable, count++);
                if (vars)
                    fprint_objid(stderr, vars->name, vars->name_length);
                fprintf(stderr, "\n");
            }
            exitval = 2;
        }
    } else if (status == STAT_TIMEOUT) {
        fprintf(stderr, "Timeout: No Response from %s\n",
                session.peername);
        exitval = 1;
    } else {                    /* status == STAT_ERROR */
        snmp_sess_perror("snmpset", ss);
        exitval = 1;
    }

    if (response)
        snmp_free_pdu(response);
    snmp_close(ss);
    SOCK_CLEANUP;
    return exitval;
}

int main(int argc, char ** argv)
{
    netsnmp_session session, *ss;
    netsnmp_pdu *pdu;
    netsnmp_pdu *response;

    oid anOID[MAX_OID_LEN];
    size_t anOID_len;

    netsnmp_variable_list *vars;
    int status;
    int count=1;

    /*
     * Initialize the SNMP library
     */
    init_snmp("snmpdemoapp");

    /*
     * Initialize a "session" that defines who we're going to talk to
     */
    snmp_sess_init( &session );                   /* set up defaults */
    session.peername = strdup("test.net-snmp.org");

    /* set up the authentication parameters for talking to the server */

#ifdef DEMO_USE_SNMP_VERSION_3

    /* Use SNMPv3 to talk to the experimental server */

    /* set the SNMP version number */
    session.version=SNMP_VERSION_3;
        
    /* set the SNMPv3 user name */
    session.securityName = strdup("MD5User");
    session.securityNameLen = strlen(session.securityName);

    /* set the security level to authenticated, but not encrypted */
    session.securityLevel = SNMP_SEC_LEVEL_AUTHNOPRIV;

    /* set the authentication method to MD5 */
    session.securityAuthProto = usmHMACMD5AuthProtocol;
    session.securityAuthProtoLen = sizeof(usmHMACMD5AuthProtocol)/sizeof(oid);
    session.securityAuthKeyLen = USM_AUTH_KU_LEN;

    /* set the authentication key to a MD5 hashed version of our
       passphrase "The Net-SNMP Demo Password" (which must be at least 8
       characters long) */
    if (generate_Ku(session.securityAuthProto,
                    session.securityAuthProtoLen,
                    (u_char *) our_v3_passphrase, strlen(our_v3_passphrase),
                    session.securityAuthKey,
                    &session.securityAuthKeyLen) != SNMPERR_SUCCESS) {
        snmp_perror(argv[0]);
        snmp_log(LOG_ERR,
                 "Error generating Ku from authentication pass phrase. \n");
        exit(1);
    }
    
#else /* we'll use the insecure (but simplier) SNMPv1 */

    /* set the SNMP version number */
    session.version = SNMP_VERSION_1;

    /* set the SNMPv1 community name used for authentication */
    session.community = "demopublic";
    session.community_len = strlen(session.community);

#endif /* SNMPv1 */

    /*
     * Open the session
     */
    SOCK_STARTUP;
    ss = snmp_open(&session);                     /* establish the session */

    if (!ss) {
      snmp_sess_perror("ack", &session);
      SOCK_CLEANUP;
      exit(1);
    }
    
    /*
     * Create the PDU for the data for our request.
     *   1) We're going to GET the system.sysDescr.0 node.
     */
    pdu = snmp_pdu_create(SNMP_MSG_GET);
    anOID_len = MAX_OID_LEN;
    if (!snmp_parse_oid(".1.3.6.1.2.1.1.1.0", anOID, &anOID_len)) {
      snmp_perror(".1.3.6.1.2.1.1.1.0");
      SOCK_CLEANUP;
      exit(1);
    }
#if OTHER_METHODS
    /*
     *  These are alternatives to the 'snmp_parse_oid' call above,
     *    e.g. specifying the OID by name rather than numerically.
     */
    read_objid(".1.3.6.1.2.1.1.1.0", anOID, &anOID_len);
    get_node("sysDescr.0", anOID, &anOID_len);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        /*
         * set boots and time, which will cause problems if this
         * machine ever reboots and a remote trap receiver has cached our
         * boots and time...  I'll cause a not-in-time-window report to
         * be sent back to this machine. 
         */
        if (session.engineBoots == 0)
            session.engineBoots = 1;
        if (session.engineTime == 0)    /* not really correct, */
            session.engineTime = get_uptime ();    /* but it'll work. Sort of. */
    }

    ss = snmp_add (&session, netsnmp_transport_open_client ("snmptrap", session.peername), NULL, NULL);
    if (ss == NULL)
    {
        /*
         * diagnose netsnmp_transport_open_client and snmp_add errors with
         * the input netsnmp_session pointer
         */
        snmp_sess_perror ("snmptrap", &session);
        SOCK_CLEANUP;
        exit (1);
    }

#ifndef NETSNMP_DISABLE_SNMPV1
    if (session.version == SNMP_VERSION_1)
    {
        if (inform)
        {
            fprintf (stderr, "Cannot send INFORM as SNMPv1 PDU\n");
            SOCK_CLEANUP;
            exit (1);
        }
        pdu = snmp_pdu_create (SNMP_MSG_TRAP);
        if (!pdu)
        {
            fprintf (stderr, "Failed to create trap PDU\n");
            SOCK_CLEANUP;
            exit (1);
        }
        pdu_in_addr_t = (in_addr_t *) pdu->agent_addr;
        if (arg == argc)
        {
            fprintf (stderr, "No enterprise oid\n");
            usage ();
            SOCK_CLEANUP;
            exit (1);
        }
        if (argv[arg][0] == 0)
        {
            pdu->enterprise = (oid *) malloc (sizeof (objid_enterprise));
            memcpy (pdu->enterprise, objid_enterprise, sizeof (objid_enterprise));
            pdu->enterprise_length = sizeof (objid_enterprise) / sizeof (oid);
        }
        else
        {
            name_length = MAX_OID_LEN;
            if (!snmp_parse_oid (argv[arg], name, &name_length))
            {
                snmp_perror (argv[arg]);
                usage ();
                SOCK_CLEANUP;
                exit (1);
            }
            pdu->enterprise = (oid *) malloc (name_length * sizeof (oid));
            memcpy (pdu->enterprise, name, name_length * sizeof (oid));

int main(int argc, char **argv) {
    if ( argc < 2) {
        ip = fgets(cm,sizeof cm,stdin);
        // remove \n
        cm[strlen(cm)-1] = '\0';
        //fprintf(stdout, "IP length: %li\n", strlen(cm) );
        if(strlen(cm)< 2) {
        printf("Missing CM IP\nUSAGE: %s <CM_IP>\n", argv[0]);
        exit(1);
        } else {
          printf("Using %s IP\n",ip);
}
    } else {
        strncpy(cm,argv[1],sizeof cm);
    }
    init_snmp("snmpapp");
    snmp_sess_init( &session );
    session.peername = cm;
    session.version=SNMP_VERSION_2c;
    session.community=(unsigned char *) "public";
    session.community_len = strlen((const char *) session.community);
    ss = snmp_open(&session);
    if (!ss) {
       snmp_perror("ack");
       snmp_log(LOG_ERR, "Unable to open snmp session!!\n");
       exit(2);
   }

    pdu = snmp_pdu_create(SNMP_MSG_GET);
    read_objid(".1.3.6.1.2.1.1.1.0", anOID, &anOID_len);
    snmp_add_null_var(pdu, anOID, anOID_len);
    status = snmp_synch_response(ss, pdu, &response);
    if (status == STAT_SUCCESS && response->errstat == SNMP_ERR_NOERROR) {
     /*
      * SUCCESS: Print the result variables
      */
    //for(vars = response->variables; vars; vars = vars->next_variable)
     //  print_variable(vars->name,vars->name_length, vars);
      /* manipulate the information ourselves */
     for(vars = response->variables; vars; vars = vars->next_variable) {
       int count=1;
       if (vars->type == ASN_OCTET_STR) {
         char *sp = malloc(1 + vars->val_len);
         memcpy(sp, vars->val.string, vars->val_len);
         sp[vars->val_len] = '\0';
         //printf("%d: %s\n", count++, sp);
         printf("%s\n", sp);
         free(sp);
       }
       else
         printf("value #%d is NOT a string! Ack!\n", count++);
     }
        } else {
     /*
      * FAILURE: print what went wrong!
      */

     if (status == STAT_SUCCESS)
       fprintf(stderr, "Error in packet\nReason: %s\n",
               snmp_errstring(response->errstat));
     else
       snmp_sess_perror("snmpget", ss);

   }
   if (response)
     snmp_free_pdu(response);
   snmp_close(ss);

   /* windows32 specific cleanup (is a noop on unix) */
   SOCK_CLEANUP;

   return EXIT_SUCCESS;

}

int
main(int argc, char *argv[])
{
    netsnmp_session session, *ss;
    netsnmp_pdu    *pdu;
    netsnmp_pdu    *response;
    int             arg;
    oid             base[MAX_OID_LEN];
    size_t          base_length;
    int             status;
    netsnmp_variable_list *saved = NULL, *vlp = saved, *vlp2;
    int             count = 0;

    /*
     * get the common command line arguments 
     */
    switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) {
    case NETSNMP_PARSE_ARGS_ERROR:
        exit(1);
    case NETSNMP_PARSE_ARGS_SUCCESS_EXIT:
        exit(0);
    case NETSNMP_PARSE_ARGS_ERROR_USAGE:
        usage();
        exit(1);
    default:
        break;
    }

    if (arg != argc) {
	fprintf(stderr, "snmpdf: extra argument: %s\n", argv[arg]);
	exit(1);
    }

    SOCK_STARTUP;

    /*
     * Open an SNMP session.
     */
    ss = snmp_open(&session);
    if (ss == NULL) {
        /*
         * diagnose snmp_open errors with the input netsnmp_session pointer 
         */
        snmp_sess_perror("snmpdf", &session);
        SOCK_CLEANUP;
        exit(1);
    }

    printf("%-18s %15s %15s %15s %5s\n", "Description", "size (kB)",
           "Used", "Available", "Used%");
    if (ucd_mib == 0) {
        /*
         * * Begin by finding all the storage pieces that are of
         * * type hrStorageFixedDisk, which is a standard disk.
         */
        pdu = snmp_pdu_create(SNMP_MSG_GETNEXT);
        base_length =
            add(pdu, "HOST-RESOURCES-MIB:hrStorageIndex", NULL, 0);
        memcpy(base, pdu->variables->name, base_length * sizeof(oid));

        vlp = collect(ss, pdu, base, base_length);

        while (vlp) {
            size_t          units;
            unsigned long   hssize, hsused;
            char            descr[SPRINT_MAX_LEN];
	    int             len;

            pdu = snmp_pdu_create(SNMP_MSG_GET);

            add(pdu, "HOST-RESOURCES-MIB:hrStorageDescr",
                &(vlp->name[base_length]), vlp->name_length - base_length);
            add(pdu, "HOST-RESOURCES-MIB:hrStorageAllocationUnits",
                &(vlp->name[base_length]), vlp->name_length - base_length);
            add(pdu, "HOST-RESOURCES-MIB:hrStorageSize",
                &(vlp->name[base_length]), vlp->name_length - base_length);
            add(pdu, "HOST-RESOURCES-MIB:hrStorageUsed",
                &(vlp->name[base_length]), vlp->name_length - base_length);

            status = snmp_synch_response(ss, pdu, &response);
            if (status != STAT_SUCCESS || !response) {
                snmp_sess_perror("snmpdf", ss);
                exit(1);
            }

            vlp2 = response->variables;
	    len = vlp2->val_len;
	    if (len >= SPRINT_MAX_LEN) len = SPRINT_MAX_LEN-1;
            memcpy(descr, vlp2->val.string, len);
            descr[len] = '\0';

            vlp2 = vlp2->next_variable;
            units = vlp2->val.integer ? *(vlp2->val.integer) : 0;

            vlp2 = vlp2->next_variable;
            hssize = vlp2->val.integer ? *(vlp2->val.integer) : 0;

            vlp2 = vlp2->next_variable;
            hsused = vlp2->val.integer ? *(vlp2->val.integer) : 0;

//.........这里部分代码省略.........

QtNetSNMP::SNMPPDU *QtNetSNMP::QSNMPCore::createPDU(SNMPPDUType type, QVector<QSNMPObject *>& objs, unsigned short nrepeaters, unsigned short mrepetitions) throw(QSNMPException)
{
    SNMPPDU *pdu;

    if(type != SNMPPDUGet && type != SNMPPDUGetNext && type != SNMPPDUGetBulk && type != SNMPPDUSet)
        throw QSNMPException("QSNMPCore :: Create PDU :: Unknown PDU type");

    if(objs.empty())
        throw QSNMPException("QSNMPCore :: Create PDU :: SNMP objects vector is empty");

    pdu = snmp_pdu_create(type);

    foreach (QSNMPObject *object, objs) {
        if(type == SNMPPDUSet) {
            if(object -> data() -> type() == SNMPDataUnknown)
                throw QSNMPException("QSNMPCore :: Create PDU :: Unknown SNMP data type");

            char dataType;

            switch(object -> data() -> type()) {
            case SNMPDataInteger:
                dataType = 'i';
                break;
            case SNMPDataUnsigned:
                dataType = 'u';
                break;
            case SNMPDataBits:
                dataType = 'b';
                break;
            case SNMPDataCounter:
                dataType = 'c';
                break;
            case SNMPDataTimeTicks:
                dataType = 't';
                break;
            case SNMPDataCounter64:
                dataType = 'C';
                break;
            case SNMPDataBitString:
                dataType = 'b';
                break;
            case SNMPDataOctetString:
                dataType = 's';
                break;
            case SNMPDataIPAddress:
                dataType = 'a';
                break;
            case SNMPDataObjectId:
                dataType = 'o';
                break;
            default:
                dataType = '=';
            }

            snmp_add_var(pdu, object -> objID() -> numOID() -> data(), static_cast<size_t>(object -> objID() -> numOID() -> size()), dataType, static_cast<const char *>(object -> data() -> value()));

        } else
            snmp_add_null_var(pdu, object -> objID() -> numOID() -> data(), static_cast<size_t>(object -> objID() -> numOID() -> size()));
    }

    if(type == SNMPPDUGetBulk) {
        pdu -> errstat = nrepeaters;
        pdu -> errindex = mrepetitions;
    }

    return pdu;
}

/**
 * This function allows you to make a distinction between generic 
 * traps from different classes of equipment. For example, you may want 
 * to handle a SNMP_TRAP_LINKDOWN trap for a particular device in a 
 * different manner to a generic system SNMP_TRAP_LINKDOWN trap.
 *   
 *
 * @param trap is the generic trap type.  The trap types are:
 *		- SNMP_TRAP_COLDSTART:
 *			cold start
 *		- SNMP_TRAP_WARMSTART:
 *			warm start
 *		- SNMP_TRAP_LINKDOWN:
 *			link down
 *		- SNMP_TRAP_LINKUP:
 *			link up
 *		- SNMP_TRAP_AUTHFAIL:
 *			authentication failure
 *		- SNMP_TRAP_EGPNEIGHBORLOSS:
 *			egp neighbor loss
 *		- SNMP_TRAP_ENTERPRISESPECIFIC:
 *			enterprise specific
 *			
 * @param specific is the specific trap value.
 *
 * @param enterprise is an enterprise oid in which you want to send specifc 
 *	traps from. 
 *
 * @param enterprise_length is the length of the enterprise oid, use macro,
 *	OID_LENGTH, to compute length.
 *
 * @param vars is used to supply list of variable bindings to form an SNMPv2 
 *	trap.
 *
 * @param context currently unused 
 *
 * @param flags currently unused 
 *
 * @return void
 *
 * @see send_easy_trap
 * @see send_v2trap
 */
int
netsnmp_send_traps(int trap, int specific,
                          oid * enterprise, int enterprise_length,
                          netsnmp_variable_list * vars,
                          char * context, int flags)
{
    netsnmp_pdu           *template_v1pdu;
    netsnmp_pdu           *template_v2pdu;
    netsnmp_variable_list *vblist = NULL;
    netsnmp_variable_list *trap_vb;
    netsnmp_variable_list *var;
    in_addr_t             *pdu_in_addr_t;
    u_long                 uptime;
    struct trap_sink *sink;

    DEBUGMSGTL(( "trap", "send_trap %d %d ", trap, specific));
    DEBUGMSGOID(("trap", enterprise, enterprise_length));
    DEBUGMSG(( "trap", "\n"));

    if (vars) {
        vblist = snmp_clone_varbind( vars );
        if (!vblist) {
            snmp_log(LOG_WARNING,
                     "send_trap: failed to clone varbind list\n");
            return -1;
        }
    }

    if ( trap == -1 ) {
        /*
         * Construct the SNMPv2-style notification PDU
         */
        if (!vblist) {
            snmp_log(LOG_WARNING,
                     "send_trap: called with NULL v2 information\n");
            return -1;
        }
        template_v2pdu = snmp_pdu_create(SNMP_MSG_TRAP2);
        if (!template_v2pdu) {
            snmp_log(LOG_WARNING,
                     "send_trap: failed to construct v2 template PDU\n");
            snmp_free_varbind(vblist);
            return -1;
        }

        /*
         * Check the varbind list we've been given.
         * If it starts with a 'sysUptime.0' varbind, then use that.
         * Otherwise, prepend a suitable 'sysUptime.0' varbind.
         */
        if (!snmp_oid_compare( vblist->name,    vblist->name_length,
                               sysuptime_oid, sysuptime_oid_len )) {
            template_v2pdu->variables = vblist;
            trap_vb  = vblist->next_variable;
        } else {
            uptime   = netsnmp_get_agent_uptime();
            var = NULL;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
{
    snmpd_register_config_handler("proxy", proxy_parse_config,
                                  proxy_free_config,
                                  "[snmpcmd args] host oid [remoteoid]");
}

void
shutdown_proxy(void)
{
    proxy_free_config();
}

int
proxy_handler(netsnmp_mib_handler *handler,
              netsnmp_handler_registration *reginfo,
              netsnmp_agent_request_info *reqinfo,
              netsnmp_request_info *requests)
{

    netsnmp_pdu    *pdu;
    struct simple_proxy *sp;
    oid            *ourname;
    size_t          ourlength;
    netsnmp_request_info *request = requests;
    u_char         *configured = NULL;

    DEBUGMSGTL(("proxy", "proxy handler starting, mode = %d\n",
                reqinfo->mode));

    switch (reqinfo->mode) {
    case MODE_GET:
    case MODE_GETNEXT:
    case MODE_GETBULK:         /* WWWXXX */
        pdu = snmp_pdu_create(reqinfo->mode);
        break;

    case MODE_SET_ACTION:
        pdu = snmp_pdu_create(SNMP_MSG_SET);
        break;

    case MODE_SET_UNDO:
        /*
         *  If we set successfully (status == NOERROR),
         *     we can't back out again, so need to report the fact.
         *  If we failed to set successfully, then we're fine.
         */
        for (request = requests; request; request=request->next) {
            if (request->status == SNMP_ERR_NOERROR) {
                netsnmp_set_request_error(reqinfo, requests,
                                          SNMP_ERR_UNDOFAILED);
                return SNMP_ERR_UNDOFAILED;
	    }
	}
        return SNMP_ERR_NOERROR;

    case MODE_SET_RESERVE1:
    case MODE_SET_RESERVE2:
    case MODE_SET_FREE:
    case MODE_SET_COMMIT:
        /*
         *  Nothing to do in this pass
         */
        return SNMP_ERR_NOERROR;

    default:
        snmp_log(LOG_WARNING, "unsupported mode for proxy called (%d)\n",

int
main(int argc, char *argv[])
{
    netsnmp_session session, *ss;
    netsnmp_pdu    *pdu = NULL, *response = NULL;

    int             arg;
    size_t          name_length = USM_OID_LEN;
    size_t          name_length2 = USM_OID_LEN;
    int             status;
    int             exitval = 1;
    int             rval;
    int             command = 0;
    long            longvar;

    size_t          oldKu_len = SNMP_MAXBUF_SMALL,
        newKu_len = SNMP_MAXBUF_SMALL,
        oldkul_len = SNMP_MAXBUF_SMALL,
        oldkulpriv_len = SNMP_MAXBUF_SMALL,
        newkulpriv_len = SNMP_MAXBUF_SMALL,
        newkul_len = SNMP_MAXBUF_SMALL,
        keychange_len = SNMP_MAXBUF_SMALL,
        keychangepriv_len = SNMP_MAXBUF_SMALL;

    char           *newpass = NULL, *oldpass = NULL;
    u_char          oldKu[SNMP_MAXBUF_SMALL],
        newKu[SNMP_MAXBUF_SMALL],
        oldkul[SNMP_MAXBUF_SMALL],
        oldkulpriv[SNMP_MAXBUF_SMALL],
        newkulpriv[SNMP_MAXBUF_SMALL],
        newkul[SNMP_MAXBUF_SMALL], keychange[SNMP_MAXBUF_SMALL],
        keychangepriv[SNMP_MAXBUF_SMALL];

    SOCK_STARTUP;

    authKeyChange = authKeyOid;
    privKeyChange = privKeyOid;

    /*
     * get the common command line arguments 
     */
    switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) {
    case NETSNMP_PARSE_ARGS_ERROR:
        goto out;
    case NETSNMP_PARSE_ARGS_SUCCESS_EXIT:
        exitval = 0;
        goto out;
    case NETSNMP_PARSE_ARGS_ERROR_USAGE:
        usage();
        goto out;
    default:
        break;
    }

    if (arg >= argc) {
        fprintf(stderr, "Please specify an operation to perform.\n");
        usage();
        goto out;
    }

    /*
     * open an SNMP session 
     */
    /*
     * Note:  this needs to obtain the engineID used below 
     */
    session.flags &= ~SNMP_FLAGS_DONT_PROBE;
    ss = snmp_open(&session);
    if (ss == NULL) {
        /*
         * diagnose snmp_open errors with the input netsnmp_session pointer 
         */
        snmp_sess_perror("snmpusm", &session);
        goto out;
    }

    /*
     * set usmUserEngineID from ss->contextEngineID
     *   if not already set (via -CE)
     */
    if (usmUserEngineID == NULL) {
      usmUserEngineID    = ss->contextEngineID;
      usmUserEngineIDLen = ss->contextEngineIDLen;
    }

    /*
     * create PDU for SET request and add object names and values to request 
     */
    pdu = snmp_pdu_create(SNMP_MSG_SET);
    if (!pdu) {
        fprintf(stderr, "Failed to create request\n");
        goto close_session;
    }


    if (strcmp(argv[arg], CMD_PASSWD_NAME) == 0) {

        /*
         * passwd: change a users password.
         *
//.........这里部分代码省略.........

//.........这里部分代码省略.........
            taggetOID_len = objfound->expObjectIDLen;
            int             status;
            struct snmp_session *ss;
            /*
             * Initialize the SNMP library
             */


            /*
             * set the SNMP version number 
             */
            session.version = expstorage->pdu_version;

            /*
             * set the SNMPv1 community name used for authentication 
             */
            session.community = expstorage->pdu_community;
            session.community_len = expstorage->pdu_community_len;

            /*
             * Open the session
             */
            SOCK_STARTUP;
            ss = snmp_open(&session);   /* establish the session */
            if (!ss) {
                snmp_perror("ack");
                snmp_log(LOG_ERR, "something horrible happened!!!\n");
                exit(2);
            }

            next_OID = targetOID;
            next_OID_len = taggetOID_len;
            do {
                index = calloc(1, MAX_OID_LEN);
                pdu = snmp_pdu_create(SNMP_MSG_GETNEXT);

                snmp_add_null_var(pdu, next_OID, next_OID_len);

                /*
                 * Send the Request out.
                 */
                status = snmp_synch_response(ss, pdu, &response);

                /*
                 * Process the response.
                 */
                if (status == STAT_SUCCESS
                    && response->errstat == SNMP_ERR_NOERROR) {
                    /*
                     * SUCCESS: Print the result variables
                     */

                    if (((response->variables->type >= SNMP_NOSUCHOBJECT &&
                          response->variables->type <= SNMP_ENDOFMIBVIEW)
                         || snmp_oid_compare(targetOID, taggetOID_len,
                                             response->variables->name,
                                             taggetOID_len) != 0)) {
                        break;
                    }
                    /* add to expValueTable */

                    *index = 0;
                    *(index + 1) = 0;
                    memcpy(index + 2,
                           response->variables->name + taggetOID_len,
                           (response->variables->name_length -
                            taggetOID_len) * sizeof(oid));
                    expValueTable_add(expstorage,
                                      objfound->expExpressionOwner,
                                      objfound->expExpressionOwnerLen,
                                      objfound->expExpressionName,
                                      objfound->expExpressionNameLen,
                                      index,
                                      response->variables->name_length -
                                      taggetOID_len + 2);

                    next_OID = response->variables->name;

                    next_OID_len = response->variables->name_length;




                } else {
                    /*
                     * FAILURE: print what went wrong!
                     */
                    if (status == STAT_SUCCESS)
                        fprintf(stderr, "Error in packet\nReason: %s\n",
                                snmp_errstring(response->errstat));
                    else
                        snmp_sess_perror("snmpget", ss);
                }
            } while (TRUE);

        }

    }

}

int 
get_ilo_oid_list (struct snmp_session *session, oid *target_oid, 
		  size_t target_oid_len, char **error_ptr)
{
  int status;
  int running = TRUE;
  oid cur_oid[MAX_OID_LEN];
  size_t cur_oid_len;

  struct snmp_pdu *pdu_ptr, *response_ptr;
  netsnmp_variable_list	*var_list,*var_list_prev=NULL;
  struct ilo_oid_list *oid_list;

  struct ilo_snmp_priv *priv_ptr = container_of(error_ptr, 
						struct ilo_snmp_priv, err_str);

  if (priv_ptr == NULL) 
    {
      ILO_ERR_DEBUG(error_ptr, "priv_ptr is NULL!\n");
      return NAGIOS_ILO_FAIL_STATUS;
    }

  oid_copy(cur_oid, &cur_oid_len, target_oid, target_oid_len);

  while (running) 
    {
      pdu_ptr = snmp_pdu_create(SNMP_MSG_GETBULK);

      /* Max-repetitions: Tell get-bulk to attemp up to 'errindex' 
	   get-next operations to get the remaining objects.  */
      pdu_ptr->errindex = SNMP_GETBULK_ERRINDEX;

      /* Non-repeater.  */
      pdu_ptr->errstat = 0;

      snmp_add_null_var(pdu_ptr, cur_oid, cur_oid_len);

      status = snmp_synch_response(session, pdu_ptr, &response_ptr);
 
      if (status == STAT_SUCCESS && response_ptr->errstat == SNMP_ERR_NOERROR) 
	{

	  var_list = var_list_prev =response_ptr->variables;
		
	  /* Add each element of the netsnmp variable list to 
	     struct ilo_oid_list.  */
	  while (var_list) 
	    {
	      if (netsnmp_oid_is_subtree(target_oid, 
	  				 target_oid_len,
					 var_list->name, 
					 var_list->name_length) != 0) 
		{
		  running = FALSE;
		  break;
		}
		
	      oid_list = alloc_oid_list(var_list, error_ptr);
			  
	      if (oid_list == NULL) 
		{
		  ILO_ERR_DEBUG(error_ptr, "oid_list is NULL!\n");
		  return NAGIOS_ILO_FAIL_STATUS;
		}

	      oid_list_add(&priv_ptr->oid_list, oid_list);
	      var_list_prev = var_list;
	      var_list = var_list->next_variable;
	    }
	    var_list=var_list_prev;

	  if ((var_list->type == SNMP_ENDOFMIBVIEW) ||
	      (var_list->type == SNMP_NOSUCHOBJECT) ||
	      (var_list->type == SNMP_NOSUCHINSTANCE)) 
	    {
	      running = FALSE;
	    } 
	  else 
	    {
		oid_copy(cur_oid, &cur_oid_len, var_list->name,var_list->name_length);
	    }
	} 
      else 
	{ /* Cannot get the response */
	  if (status == STAT_SUCCESS) 
	    {
	      ILO_ERR_DEBUG(error_ptr, "Cannot get the response: %s\n",
			    snmp_errstring(response_ptr->errstat));
	    } 
	  else 
	    {
	      snmp_error(session, &session->s_errno, &session->s_snmp_errno, 
		 	 error_ptr);
	    }

	   return NAGIOS_ILO_FAIL_STATUS;

	}
	  
      if (response_ptr)
//.........这里部分代码省略.........

int
main(int argc, char *argv[])
{
    netsnmp_session session, *ss;
    netsnmp_pdu    *pdu;
    netsnmp_pdu    *response;
    netsnmp_variable_list *vars;
    int             arg;
    int             count;
    int             running;
    int             status;
    int             exitval = 0;

    /*
     * get the common command line arguments 
     */
    switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) {
    case NETSNMP_PARSE_ARGS_ERROR:
        exit(1);
    case NETSNMP_PARSE_ARGS_SUCCESS_EXIT:
        exit(0);
    case NETSNMP_PARSE_ARGS_ERROR_USAGE:
        usage();
        exit(1);
    default:
        break;
    }

    names = argc - arg;
    if (names < non_repeaters) {
        fprintf(stderr, "snmpbulkget: need more objects than <nonrep>\n");
        exit(1);
    }

    namep = name = (struct nameStruct *) calloc(names, sizeof(*name));
    while (arg < argc) {
        namep->name_len = MAX_OID_LEN;
        if (snmp_parse_oid(argv[arg], namep->name, &namep->name_len) ==
            NULL) {
            snmp_perror(argv[arg]);
            exit(1);
        }
        arg++;
        namep++;
    }

    SOCK_STARTUP;

    /*
     * open an SNMP session 
     */
    ss = snmp_open(&session);
    if (ss == NULL) {
        /*
         * diagnose snmp_open errors with the input netsnmp_session pointer 
         */
        snmp_sess_perror("snmpbulkget", &session);
        SOCK_CLEANUP;
        exit(1);
    }

    /*
     * create PDU for GETBULK request and add object name to request 
     */
    pdu = snmp_pdu_create(SNMP_MSG_GETBULK);
    pdu->non